The Oasis Live '25 promoters said the "examination of ticket sales is ongoing" and the results will be "passed to relevant law enforcement".
They said cancelled tickets will be made available again on Ticketmaster, and warned fans not to purchase tickets from "unauthorised websites" as they may be "fraudulent".
It comes after the band announced they would return in 2025 for the first time since breaking up in 2009 following a backstage brawl at the Rock en Seine festival in France, to play concerts in Manchester, Cardiff, London, Edinburgh and Dublin.
The band will also embark on a tour of the US, Canada and Australia. Oasis will play four shows in Australia starting on October 31 and November 1 at Marvel Stadium in Melbourne and a pair of dates at Accor Stadium in Sydney on November 7 and 8.
Oasis will play shows in Melbourne and Sydney during October and November next year. (AP PHOTO)
A spokesperson for the promoters said: "Following on from commitments made by the band in the run-up to the Oasis Live '25 on sale, the tour's promoters have advised that ticket agents Ticketmaster and See Tickets will start the process of cancelling tickets that are believed to have broken the terms and conditions put in place for the tour in the coming weeks.
"These terms and conditions were successfully put in place to take action against secondary ticketing companies reselling tickets for huge profit, as a result only four per cent of tickets have ended up on resale sites.
"By comparison, some major tours can see up to 20 per cent of tickets appearing via the major unauthorised secondary platforms.
"The examination of ticket sales is ongoing and the results will be passed to relevant law enforcement once complete where appropriate.
"Cancelled tickets will be made available again at face value in due course from the official agency Ticketmaster. More details on this will be shared soon.
"If fans do want to sell Oasis tickets they can do so at face value through Ticketmaster or the band's official resale partner Twickets."
Tickets were spotted on reselling platform Viagogo for thousands of pounds, with standing passes ranging from STG596-STG1162 ($A1,171-$A2,284) each for the Wembley dates and one VIP pass at STG2,614 ($A5,137) after sales were released earlier this year.
There was outrage from fans and the controversy prompted the UK government and Britian's competition watchdog to pledge they would look at the use of dynamic pricing.
Ticketmaster has previously said it does not set concert prices and its website states this is down to the "event organiser" who "has priced these tickets according to their market value".
It comes after the band announced that Liverpool group Cast will be the second opening act for Oasis at all 19 dates on the UK and Ireland leg of the tour.
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